The Collector's Edition (uniquely numbered) will contain:
The full game of ACE COMBAT 7: SKIES UNKNOWN
Season Pass: which includes three aircrafts, three additional missions and a music player mode
Exclusive die-cast metal figurine of the Arsenal Bird Fighter plane (40cm: 500g)
A4 art book titled 'ACES at WAR: A HISTORY 2019'(150 pages of exclusive illustrations, interviews and 4 short novels written by writer-director Sunao Katabuchi)

Mike1888, I’m curious as to why you completely stopped collecting steelbooks!? Don’t you agree that some of them have really beautiful designs? and some of the art work is really nice!?

I haven't completely stopped collecting steelbooks. I still get ones that are rare or especially nice. For example, I have been getting all the GEO steelbooks.

I just stopped collecting them in a 'completionist' kind of way because there's too many of them being released nowadays and they rarely carry much value. I think its also a result of having changed from a quantity to quality-based collecting approach. Other than games themselves, I don't buy many items in the $20-50 range anymore.